Re: [PATCH] bridge: make it possible for packets to traverse the bridge withour hitting netfilter

[David Miller]

From: Imre Palik <imrep.amz@xxxxxxxxx>
Date: Tue, 10 Feb 2015 10:32:24 +0100

> From: "Palik, Imre" <imrep@xxxxxxxxx>
> 
> The netfilter code is made with flexibility instead of performance in mind.
> So when all we want is to pass packets between different interfaces, the
> performance penalty of hitting netfilter code can be considerable, even when
> all the firewalling is disabled for the bridge.
> 
> This change makes it possible to disable netfilter both on a per bridge basis,
> or for the whole bridging subsystem.  In the case interesting to us, this can
> lead to more than 10% speedup compared to the case when only bridge-iptables
> are disabled.
> 
> Cc: Anthony Liguori <aliguori@xxxxxxxxxx>
> Signed-off-by: Imre Palik <imrep@xxxxxxxxx>

Sorry, no.

If I apply this, someone is going to try to submit a patch for every
damn protocol layer to add a stupid hack like this.

Makw NF_HOOK() faster instead.
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